Writing instrument



FIG. 1 is a front elevational view showing our new design;

FIG. 2 is a left side elevational view, the right side elevational view being a mirror image thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view of a second embodiment of the present invention;

FIG. 7 is a left side elevational view of FIG. 6, the right side elevational view being a mirror image thereof;

FIG. 8 is a rear view of FIG. 6;

FIG. 9 is a top plan view of FIG. 6;

FIG. 10 is a bottom plan view of FIG. 6;

FIG. 11 is a front elevational view of a third embodiment of the present invention;

FIG. 12 is a left side elevational view of FIG. 11, the right side elevational view being a mirror image thereof;

FIG. 13 is a rear view of FIG. 11 shown with a cap;

FIG. 14 is a top plan view of FIG. 11;

FIG. 15 is a bottom plan view of FIG. 11;

FIG. 16 is a bottom plan view of FIG. 13;

FIG. 17 is a front elevational view of a fourth embodiment of the present invention;

FIG. 18 is a left side elevational view of FIG. 17, the right side elevational view being a mirror image thereof; and,

FIG. 19 is a bottom plan view of FIG. 17. 

The ornamental design for a “writing instrument,” as shown and described. 